Manual and Data Sheet NSE Version 1.0
Variotech – Emergency power supply unit NSE Version 1.0
Date: 10.01.14, Page 4 of 7
Product description:
•
Compact and reliable power supply unit for A3 safety elements with power supply 24VDC.
•
Built-in logic for the function of an uninterruptible power supply.
•
Built-in logic for safe shutdown of the A3 brake element if an A3 error occurs.
•
Connection for external emergency release button with built-in logic and
output terminals to reset the A3 safety circuit.
•
Clamp connection for a 12V battery (to load).
•
Built-in monitoring of charging and deep discharge protection of the battery.
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Relay contact output for message if battery is OK or defective.
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Built-in logic for switching between battery charging and supply
•
Built-in function to create a buffer voltage of 24VDC from the 12V battery.
This only requires a single 12V battery.
•
Reverse polarity protection and automatic reset fuse at the battery clamp.
•
Automatic lowering of the supply voltage of the A3 brake element after tightening of the
anchor. This causes a reduction of the heating of the coil of the A3 brake element and an
improvement of the overall life and reliability of the A3 device.
•
Input for monitoring the mains voltage
•
Signal transducer (beeper / buzzer) for signalling of faults acoustically.
This makes it easier for the technician to find an error.
Layout and connections:
Technical Details:
Connection: with plug-in terminals, encoded with different numbers,
Terminals: max. conductor cross section of 1 mm
²
with sleeve, or 1.5 mm
²
without sleeve.
Cable length: There are no prescribed limits. Shielded cables are not necessary.
Operating ambient temperature:
+ 5°C to + 40°C
Humidity (no condensation)
< 95 %
Storage temperature:
– 25°C to + 70°C
Dimensions:
10cm x 12cm x height 5cm
Weight:
500g